TY  - BOOK
AU  - Cottrell,K.W.
TI  - Peat in 1922 : : Mineral resources of the United States, 1922-Part II
PY  - 1923///
CY  - Washington, D. C. 
PB  - Goternment printing office
KW  - MINERALES
KW  - MINERIA
KW  - TURBA
N1  - Impreso
ER  -